Morningstar’s updated withdrawal rate research for 2026 emphasizes that sustainable retirement income depends on more than a fixed percentage rule. Market volatility, longevity, and spending flexibility all influence long-term outcomes. The analysis highlights sequence risk and the importance of adjusting withdrawals during downturns. It also reinforces the value of aligning dependable income sources with essential expenses to reduce pressure on investment portfolios. Rather than relying solely on a static withdrawal rate, retirees may benefit from a dynamic approach that integrates predictable income, disciplined spending, and periodic review. Sustainable retirement income is ultimately shaped by structure, not just percentages.